Open Expansion Board Project Rev3 - Final but project abandened.
KICad Project with Gerber Files.
I was not entirely happy with this design. Even though I use a version for house automation since about 2 years I closed the project in favour to the new Board III.
I was not entirely happy with this design. Even though I use a version for house automation since about 2 years I closed the project in favour to the new Board III.
Dokumentation Open Source Expansion Board - Deutsch
Dokumentation in Deutsch
Front Side PCB
Front side PCB as PDF - For those who make their own boards with etching
Back Side PBC
Back side PCB as PDF - For those who make their own boards with etching
Bill of Material
Parts List. Most items can be purchased at Conrad Electronic or Völkner
Expansion board example: Simple Oszilloscope
Simple Oszilloscope and Function Generator, written in Gambas. Usefull tool, not only for testing. Together with expansion board the scope can read and write 0-10V or 0-24V signals
Simple testing program, written in Python
SPI Test Programm in C
A small program to test the Expansion board, written in C, using ioctrl.
SPI Test Multiboard in C
Example how to use the several boards in serial mode. The Programm is tested with 2 boards.
Expansionsboard SPIDER
Description of the Expansion Board - Available in German only for now. The English version is in preperation
HOWTO - Configure the Raspberry Pi
Configure the Raspberry Pi to work with the Expansion Board, connected through the SPI bus